/*
This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file is based on Keepassdroid, Copyright Brian Pellin.

  Keepass2Android is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  Keepass2Android is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with Keepass2Android.  If not, see <http://www.gnu.org/licenses/>.
  */

using System;
using Android.Content;
using Android.OS;
using Android.Preferences;
using Android.Runtime;
using Android.Views;
using AndroidX.Core.Content;
using KeePassLib.Serialization;

namespace keepass2android
{
  /// <summary>
  /// Base class for list activities displaying sensitive information. 
  /// </summary>
  /// Checks in OnResume whether the timeout occured and the database must be locked/closed.
  public class LockCloseListActivity : LockingListActivity, ILockCloseActivity
  {
    public LockCloseListActivity()
    {
      _design = new ActivityDesign(this);
    }

    IOConnectionInfo _ioc;
    private BroadcastReceiver _intentReceiver;
    private ActivityDesign _design;

    protected override void OnCreate(Bundle savedInstanceState)
    {
      _design.ApplyTheme();
      base.OnCreate(savedInstanceState);


      Util.MakeSecureDisplay(this);

      _ioc = App.Kp2a.CurrentDb.Ioc;

      _intentReceiver = new LockCloseActivityBroadcastReceiver(this);
      IntentFilter filter = new IntentFilter();

      filter.AddAction(Intents.DatabaseLocked);
      filter.AddAction(Intent.ActionScreenOff);
      ContextCompat.RegisterReceiver(this, _intentReceiver, filter, (int)ReceiverFlags.Exported);

    }

    public LockCloseListActivity(IntPtr javaReference, JniHandleOwnership transfer)
        : base(javaReference, transfer)
    {
      _design = new ActivityDesign(this);
    }

    protected override void OnResume()
    {
      base.OnResume();
      _design.ReapplyTheme();

      if (TimeoutHelper.CheckDbChanged(this, _ioc))
      {
        Finish();
        return;
      }

      //todo: see LockCloseActivity.OnResume
      App.Kp2a.CheckForOpenFileChanged(this);
    }

    protected override void OnDestroy()
    {
      try
      {
        UnregisterReceiver(_intentReceiver);
      }
      catch (Exception ex)
      {
        Kp2aLog.LogUnexpectedError(ex);
      }

      base.OnDestroy();
    }


    public void OnLockDatabase(bool lockedByTimeout)
    {
      TimeoutHelper.Lock(this, lockedByTimeout);
    }
  }
}

